API tools faq
paste
Advertisement
Guest User

Untitled

a guest
May 9th, 2018
91
0
Never
Add comment
Not a member of Pastebin yet? Sign Up, it unlocks many cool features!
VeriLog 6.60 KB | None | 0 0
raw download clone embed print report
  1. module wallace(
  2.     output [15:0] product,
  3.     input [7:0] multiplicand, multiplier
  4.     );
  5.  
  6.     integer i, j ;
  7.     wire [63:0] s ,c ;
  8.     reg p [7:0][7:0];  
  9.  
  10.  
  11.     always@(multiplier, multiplicand)
  12.     begin
  13.  
  14.  
  15.  
  16.     for (i = 0; i <= 7; i = i + 1)
  17.     for (j = 0; j <= 7; j = j + 1)
  18.     p[j][i] <= multiplicand[j] & multiplier[i];
  19.  
  20.     end
  21.     adder_half ha_11 ( .sum(s[0]), .carry(c[0]), .a(p[1][0]), .b( p[0][1]) );
  22.     adder_full fa_11 ( .sum(s[1]), .carry(c[1]), .a(p[2][0]), .b( p[1][1]), .cin( p[0][2]) );
  23.     adder_full fa_12 ( .sum(s[2]), .carry(c[2]), .a(p[3][0]), .b( p[2][1]), .cin( p[1][2]) );
  24.     adder_full fa_13 ( .sum(s[3]), .carry(c[3]), .a(p[4][0]), .b( p[3][1]), .cin( p[2][2]) );
  25.     adder_full fa_14 ( .sum(s[4]), .carry(c[4]), .a(p[5][0]), .b( p[4][1]), .cin( p[3][2]) );
  26.     adder_full fa_15 ( .sum(s[5]), .carry(c[5]), .a(p[6][0]), .b( p[5][1]), .cin( p[4][2]) );
  27.     adder_full fa_16 ( .sum(s[6]), .carry(c[6]), .a(p[7][0]), .b( p[6][1]), .cin( p[5][2]) );
  28.     adder_half ha_12 ( .sum(s[7]), .carry(c[7]), .a( p[7][1]), .b ( p[6][2]) );
  29.  
  30.  
  31.  
  32.     adder_half ha_21 ( .sum( s[8] ), .carry( c[8 ]), .a( p[1][3]), .b( p[0][4]) );
  33.     adder_full fa_21 ( .sum( s[9] ), .carry( c[9 ]), .a( p[2][3]), .b( p[1][4]), .cin( p[0][5]) );
  34.     adder_full fa_22 ( .sum( s[10]), .carry( c[10]), .a( p[3][3]), .b( p[2][4]), .cin( p[1][5]) );
  35.     adder_full fa_23 ( .sum( s[11]), .carry( c[11]), .a( p[4][3]), .b( p[3][4]), .cin( p[2][5]) );
  36.     adder_full fa_24 ( .sum( s[12]), .carry( c[12]), .a( p[5][3]), .b( p[4][4]), .cin( p[3][5]) );
  37.     adder_full fa_25 ( .sum( s[13]), .carry( c[13]), .a( p[6][3]), .b( p[5][4]), .cin( p[4][5]) );
  38.     adder_full fa_26 ( .sum( s[14]), .carry( c[14]), .a( p[7][3]), .b( p[6][4]), .cin( p[5][5]) );
  39.     adder_half ha_22 ( .sum( s[15]), .carry( c[15]), .a( p[7][4]), .b ( p[6][5]) );
  40.  
  41.  
  42.  
  43.     adder_half ha_31 ( .sum( s[16]), .carry( c[16]), .a( c[0]) , .b ( s[1]) );
  44.     adder_full fa_31 ( .sum( s[17]), .carry( c[17]), .a( c[1]) , .b ( s[2]) , .cin ( p[0][3]) );
  45.     adder_full fa_32 ( .sum( s[18]), .carry( c[18]), .a( c[2]) , .b ( s[3]) , .cin ( s[8] ) );
  46.     adder_full fa_33 ( .sum( s[19]), .carry( c[19]), .a( c[3]) , .b ( s[4]) , .cin ( s[9] ) );
  47.     adder_full fa_34 ( .sum( s[20]), .carry( c[20]), .a( c[4]) , .b ( s[5]) , .cin ( s[10]) );
  48.     adder_full fa_35 ( .sum( s[21]), .carry( c[21]), .a( c[5]) , .b ( s[6]) , .cin ( s[11]) );
  49.     adder_full fa_36 ( .sum( s[22]), .carry( c[22]), .a( c[6]) , .b ( s[7]) , .cin ( s[12]) );
  50.     adder_full fa_37 ( .sum( s[23]), .carry( c[23]), .a( c[7]) , .b ( p[7][2]), .cin ( s[13]) );
  51.  
  52.  
  53.  
  54.  
  55.     adder_half ha_41 ( .sum( s[24]), .carry( c[24]), .a( c[9] ) , .b( p[0][6]) );
  56.     adder_full fa_41 ( .sum( s[25]), .carry( c[25]), .a( c[10]) , .b( p[1][6]), .cin( p[0][7]) );
  57.     adder_full fa_42 ( .sum( s[26]), .carry( c[26]), .a( c[11]) , .b( p[2][6]), .cin( p[1][7]) );
  58.     adder_full fa_43 ( .sum( s[27]), .carry( c[27]), .a( c[12]) , .b( p[3][6]), .cin( p[2][7]) );
  59.     adder_full fa_44 ( .sum( s[28]), .carry( c[28]), .a( c[13]) , .b( p[4][6]), .cin( p[3][7]) );
  60.     adder_full fa_45 ( .sum( s[29]), .carry( c[29]), .a( c[14]) , .b( p[5][6]), .cin( p[4][7]) );
  61.     adder_full fa_46 ( .sum( s[30]), .carry( c[30]), .a( c[15]) , .b( p[6][6]), .cin( p[5][7]) );
  62.     adder_half fa_47 ( .sum( s[31]), .carry( c[31]), .a( p[7][6]), .b ( p[6][7]) );
  63.  
  64.  
  65.  
  66.     adder_half ha_51 ( .sum( s[32]), .carry( c[32]), .a( s[17]) , .b( c[16]) );
  67.     adder_half fa_51 ( .sum( s[33]), .carry( c[33]), .a( s[18]) , .b( c[17]) );
  68.     adder_full fa_52 ( .sum( s[34]), .carry( c[34]), .a( s[19]) , .b( c[18]), .cin( c[8] ) );
  69.     adder_full fa_53 ( .sum( s[35]), .carry( c[35]), .a( s[20]) , .b( c[19]), .cin( s[24]) );
  70.     adder_full fa_54 ( .sum( s[36]), .carry( c[36]), .a( s[21]) , .b( c[20]), .cin( s[25]) );
  71.     adder_full fa_55 ( .sum( s[37]), .carry( c[37]), .a( s[22]) , .b( c[21]), .cin( s[26]) );
  72.     adder_full fa_56 ( .sum( s[38]), .carry( c[38]), .a( s[23]) , .b( c[22]), .cin( s[27]) );
  73.     adder_full fa_57 ( .sum( s[39]), .carry( c[39]), .a( s[14]) , .b( c[23]), .cin( s[28]) );
  74.     adder_half ha_52 ( .sum( s[40]), .carry( c[40]), .a( s[15]) , .b ( s[29]) );
  75.     adder_half ha_53 ( .sum( s[41]), .carry( c[41]), .a( p[7][5]), .b ( s[30]) );
  76.  
  77.  
  78.     adder_half ha_61 ( .sum( s[42]), .carry( c[42]), .a( s[33]) , .b( c[32]) );
  79.     adder_half ha_62 ( .sum( s[43]), .carry( c[43]), .a( s[34]) , .b( c[33]) );
  80.     adder_half ha_63 ( .sum( s[44]), .carry( c[44]), .a( s[35]) , .b( c[34]) );
  81.     adder_full fa_61 ( .sum( s[45]), .carry( c[45]), .a( s[36]) , .b( c[35]), .cin( c[24]) );
  82.     adder_full fa_62 ( .sum( s[46]), .carry( c[46]), .a( s[37]) , .b( c[36]), .cin( c[25]) );
  83.     adder_full fa_63 ( .sum( s[47]), .carry( c[47]), .a( s[38]) , .b( c[37]), .cin( c[26]) );
  84.     adder_full fa_64 ( .sum( s[48]), .carry( c[48]), .a( s[39]) , .b( c[38]), .cin( c[27]) );
  85.     adder_full fa_65 ( .sum( s[49]), .carry( c[49]), .a( s[40]) , .b( c[39]), .cin( c[28]) );
  86.     adder_full fa_66 ( .sum( s[50]), .carry( c[50]), .a( s[41]) , .b( c[40]), .cin( c[29]) );
  87.     adder_full fa_67 ( .sum( s[51]), .carry( c[51]), .a( s[31]) , .b( c[41]), .cin( c[30]) );
  88.     adder_half ha_64 ( .sum( s[52]), .carry( c[52]), .a( p[7][7]), .b ( c[31]) );
  89.  
  90.  
  91.  
  92.     adder_half ha_71 ( .sum( s[53]), .carry( c[53]), .a( s[43]) , .b( c[42]) );
  93.     adder_full fa_71 ( .sum( s[54]), .carry( c[54]), .a( s[44]) , .b( c[43]), .cin ( c[53]) );
  94.     adder_full fa_72 ( .sum( s[55]), .carry( c[55]), .a( s[45]) , .b( c[44]), .cin ( c[54]) );
  95.     adder_full fa_73 ( .sum( s[56]), .carry( c[56]), .a( s[46]) , .b( c[45]), .cin ( c[55]) );
  96.     adder_full fa_74 ( .sum( s[57]), .carry( c[57]), .a( s[47]) , .b( c[46]), .cin ( c[56]) );
  97.     adder_full fa_75 ( .sum( s[58]), .carry( c[58]), .a( s[48]) , .b( c[47]), .cin ( c[57]) );
  98.     adder_full fa_76 ( .sum( s[59]), .carry( c[59]), .a( s[49]) , .b( c[48]), .cin ( c[58]) );
  99.     adder_full fa_77 ( .sum( s[60]), .carry( c[60]), .a( s[50]) , .b( c[49]), .cin ( c[59]) );
  100.     adder_full fa_78 ( .sum( s[61]), .carry( c[61]), .a( s[51]) , .b( c[50]), .cin ( c[60]) );
  101.     adder_full fa_79 ( .sum( s[62]), .carry( c[62]), .a( s[52]) , .b( c[51]), .cin ( c[61]) );
  102.     adder_half ha_72 ( .sum( s[63]), .carry( c[63]), .a( c[52]), .b ( c[62]) );
  103.  
  104.     assign product = {s[63 : 53],s[42],s[32],s[16],s[0],p[0][0]};
  105.    
  106. endmodule
  107.  
  108. module adder_full
  109. (
  110.  output sum,
  111.  output carry,
  112.  input a,
  113.  input b,
  114.  input cin
  115.  );
  116.  
  117.     assign {carry,sum} =  carry + a + b;
  118.  
  119. endmodule
  120.  
  121. module adder_half
  122.   (
  123.     output sum,
  124.    output carry,
  125.    input a,
  126.    input b  
  127.    );
  128.  
  129.   assign sum   = a ^ b;  
  130.   assign carry = a & b;  
  131.  
  132. endmodule
Advertisement
Add Comment
Please, Sign In to add comment
Advertisement
Public Pastes
Advertisement
We use cookies for various purposes including analytics. By continuing to use Pastebin, you agree to our use of cookies as described in the Cookies Policy.  OK, I Understand
Not a member of Pastebin yet?
Sign Up, it unlocks many cool features!